Article
Chemistry, Physical
Jacek Grams, Robert Ryczkowski, Renata Sadek, Karolina Chalupka-Spiewak, Sandra Casale, Stanislaw Dzwigaj
Summary: The main objective of these studies was to develop a competitive catalyst for upgrading biomass pyrolysis vapors to H2-rich gas. The experiments determined the effect of incorporating zirconium into the structure of BEA zeolite on the performance of NiBEA catalyst in this process. The results showed that the introduction of zirconium increased the efficiency of Ni catalyst in producing H2-rich gas.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Robert Ryczkowski, Joanna Goscianska, Rafal Panek, Wojciech Franus, Kamila Przybysz, Jacek Grams
Summary: This study aimed to design sustainable nickel catalysts supported on selected fly ash based zeolites for thermal processing of lignocellulosic feedstock towards hydrogen rich gas. Incorporation of nickel into the structure of zeolite A modified by lanthanum was found to be the most effective method for H2 production. The physicochemical properties of the catalyst played a key role in enhancing its activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Mohd Razali Shamsuddin, Nasar Mansir, Arfaezah Anuar, Mohd Izham Saiman, Tengku Sharifah Marliza, Mohd Ambar Yarmo, Yun Hin Taufiq-Yap
Summary: The study investigated the synergetic effect between NiO and dolomite support in the dry reforming of methane process, with 10% NiO/dolomite catalyst showing superior performance in producing H-2 rich syngas. The catalytic reaction demonstrated high conversion rates of CH4 and CO2 to H-2, with minimal coke formation and dual site associative adsorption mechanism.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Tao Xu, Xiuren Zheng, Jue Xu, Yongping Wu
Summary: Hydrogen production from biomass pyrolysis is a promising and attractive technology. This study investigates the catalytic pyrolysis of pine sawdust using nano-NiO/Al2O3 catalyst, and observes the effects of residence time and catalytic temperature on the pyrolysis performance. The results show that longer residence times and higher catalytic temperatures can enhance gas production and improve the quality of the syngas.
Article
Energy & Fuels
Rongyi Gao, Longkai Zhu, Mingtai Zhou, Zhen Wang, Yun He, Zhenhua Qin, Jianfen Li
Summary: In this study, a novel Ni/CaZnAl catalyst was synthesized using the sol-gel method, which exhibited good catalytic performance and anti-deactivation ability in biomass catalytic reactions. The syngas production was significantly enhanced, demonstrating great potential for applications.
BIOENERGY RESEARCH
(2023)
Article
Chemistry, Applied
Liujie Xu, Yi Li, Mingzheng Liao, Qingbin Song, Chao Wang, Jiahong Weng, Ming Zhao, Ningbo Gao
Summary: Waste cooking oil (WCO) energy development is an effective method for producing renewable fuels. This study developed a novel bimetallic Fe(Ni)Ru/ZSM-5 catalyst for H-2-rich syngas production from WCO. The Fe-Ru/ZSM-5 catalyst showed a higher maximum H-2 yield than the Ni-Ru/ZSM-5 catalyst. Fe-Ru/ZSM-5 had a more prolific microporous distribution and improved the conversion ratio of benzene and the anti-carbon deposition capability of the catalyst. The study also discussed the mechanism of bimetallic-loaded catalysts in WCO pyrolysis.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Agricultural Engineering
Sabar Pangihutan Simanungkalit, Isabelle Jones, Chiemeka Onyeka Okoye, Zhezi Zhang, Mingming Zhu, Dongke Zhang
Summary: The possibility of direct methanol synthesis from biomass pyrolysis syngas using Cu/ZnO/Al2O3 catalysts was investigated. Methanol yield was influenced by temperature, pressure, and time on-stream. The presence of CO2 in the syngas resulted in decreased catalyst performance, while CH4 did not affect performance. This research provides insights into the challenges of producing methanol from unconventional syngas and motivates future work to develop a robust catalyst for H2-deficient and CO2-rich syngas.
BIOMASS & BIOENERGY
(2023)
Article
Chemistry, Analytical
Baofeng Zhao, Huajian Yang, Heming Zhang, Cunqing Zhong, Jingwei Wang, Di Zhu, Haibin Guan, Laizhi Sun, Shuangxia Yang, Lei Chen, Hongzhang Xie
Summary: The experiment demonstrated that a 10 wt.% Ni/CaO catalyst with magnetic properties showed favorable catalytic ability in producing H2 from biomass pyrolysis, with H2 content and yield increasing with higher magnetic field intensity. The study suggests that biomass catalytic pyrolysis assisted with a magnetic field is a promising technology for enhancing H2-rich gas production.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Thermodynamics
Xueqin Li, Peng Liu, Tingzhou Lei, Youqing Wu, Wenxuan Chen, Zhiwei Wang, Jie Shi, Shiyong Wu, Yanling Li, Sheng Huang
Summary: This paper studied the conditions and mechanism of hydrogen-rich gas produced from catalytic pyrolysis of toluene by various Ni-based catalysts. The results showed that Fe-modified Ni/HZSM-5 catalyst had the highest efficiency in hydrogen production. The smaller crystal particles, high surface area, and sufficient loading quality of Ni-Fe catalysts provided efficient active sites and promoted the pyrolysis process of toluene. The activity and stability of catalysts were also improved by Ce-modified Ni/ZSM-5 catalyst, but with lower hydrogen yield. Ni-Mg/HZSM-5 catalyst had the lowest activity and stability, attributed to nickel sintering and coke formation. The Ni-Fe/HZ5 catalyst maintained high catalytic activity even after two regenerations.
Article
Energy & Fuels
Qiuxiang Lu, Xu Zhang, Shenfu Yuan, Xiaoguang Xie
Summary: The study demonstrated that MgO plays a role in enhancing hydrogen content and acts differently at various Mg/3Fe1Ni ratios. Additionally, the temperature and heating rate were found to impact the products of biomass pyrolysis with the 3Fe1Ni0.4Mg catalyst. The Fe-Ni-Mg catalyst was shown to be a low-cost option for increasing hydrogen production.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Analytical
Ella Blanquet, Paul T. Williams
Summary: A novel two-stage pyrolysis-plasma/catalysis process has been developed for hydrogen production from waste biomass, with metal promoters having varying effects on hydrogen yield and alumina as the optimal catalyst support material for highest hydrogen production.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Chemistry, Physical
Mahdi Faraji, Majid Saidi
Summary: The present study investigates hydrogen-rich syngas production via an integrated configuration of pyrolysis and air gasification processes of different algal biomass at relevant industrial conditions. A comprehensive steady state equilibrium simulation model developed using Aspen Plus software was used to optimize gasifier performance, with good agreement between predicted and experimental results. Sensitivity analysis of operational parameters identified optimal conditions for maximizing hydrogen and carbon monoxide production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Wenyan Dong, Songhong Li, Mingshun Wang, Xing Yuan, Yang Cao, Xianquan Ao
Summary: Ni/red mud (RM) catalysts were prepared and used for catalytic steam gasification of bamboo sawdust (BS) to produce hydrogen-rich syngas. The system was optimized with 10% added nickel, a reaction temperature of 800°C, and catalyst placement behind the BS. The Ni/RM catalyst showed higher H2 yield and H2/CO ratio compared to pure RM catalyst or BS gasification alone, and retained good activity after six cycles.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Applied
Wenchang Yue, Xiaoqian Ma, Zhaosheng Yu, Hongyu Liu, Weijie Li, Changxin Li
Summary: This study investigated the effects of different metal doping and Mo addition ratios on the performance of biomass catalytic pyrolysis for hydrogen production. The results showed that the Mo0.5Ni1Ca7 catalyst had the best catalytic activity and yielded the highest hydrogen production. The Mo0.5Ni1Ca7 catalyst also reduced CO2 concentration and enhanced adsorption performance. The increase in Mo and NiO/Ni (OH)2 ratio further improved the stability and activity of the catalyst.
FUEL PROCESSING TECHNOLOGY
(2023)
Review
Energy & Fuels
Praveen Kumar Ghodke, Amit Kumar Sharma, Arun Jayaseelan, K. P. Gopinath
Summary: The increasing global population growth, modernization, and industrialization have led to a significant rise in energy consumption, resulting in worsened climate conditions and greenhouse gas emissions. As a result, researchers are exploring eco-friendly and sustainable energy sources, with hydrogen (H2) emerging as a clean and carbon-free future energy carrier. Thermochemical routes and the use of lignocellulosic biomass have shown great potential for sustainable H2 production. This study provides an overview of advancements in gasification technologies, operating conditions, catalysts, and emerging technologies for improving H2-rich syngas production.